Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at √s=8 TeV with the ATLAS detector

被引：110

作者：

Aad, G. ^{[120
,121
]}

Abbott, B. ^{[153
]}

Abdallah, J. ^{[213
]}

Abdinov, O. ^{[14
]}

Aben, R. ^{[147
]}

Abolins, M. ^{[126
]}

AbouZeid, O. S. ^{[221
]}

Abramowicz, H. ^{[215
]}

Abreu, H. ^{[214
]}

Abreu, R. ^{[43
]}

Abulaiti, Y. ^{[206
,207
]}

Acharya, B. S. ^{[228
,229
,249
]}

Adamczyk, L. ^{[60
]}

Adams, D. L. ^{[37
]}

Adelman, J. ^{[148
]}

Adomeit, S. ^{[137
]}

Adye, T. ^{[180
]}

Affolder, A. A. ^{[106
]}

Agatonovic-Jovin, T. ^{[17
]}

Aguilar-Saavedra, J. A. ^{[169
,174
,175
]}

Ahlen, S. P. ^{[31
]}

Ahmadov, F. ^{[95
,250
]}

Aielli, G. ^{[183
,184
]}

Akerstedt, H. ^{[206
,207
]}

Akesson, T. P. ^{[116
]}

Akimoto, G. ^{[217
,218
]}

Akimov, A. V. ^{[133
]}

Alberghi, G. L. ^{[28
,29
]}

Albert, J. ^{[239
]}

Albrand, S. ^{[81
]}

Verzini, M. J. Alconada ^{[101
,102
]}

Aleksa, M. ^{[43
]}

Aleksandrov, I. N. ^{[95
]}

Alexa, C. ^{[38
]}

Alexander, G. ^{[215
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[153
]}

Alimonti, G. ^{[127
]}

Alio, L. ^{[120
,121
]}

Alison, J. ^{[44
]}

Alkire, S. P. ^{[56
]}

Allbrooke, B. M. M. ^{[24
]}

Allport, P. P. ^{[106
]}

Aloisio, A. ^{[142
,143
,177
,259
]}

Alonso, A. ^{[57
]}

Alonso, F. ^{[101
,102
]}

Alpigiani, C. ^{[109
]}

Altheimer, A. ^{[56
]}

Gonzalez, B. Alvarez ^{[43
]}

Piqueras, D. Alvarez ^{[233
,234
,235
,236
,237
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] CNRS IN2P3, LAPP, Annecy Le Vieux, France

[8] Univ Savoie Mt Blanc, Annecy Le Vieux, France

[9] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[11] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[12] Univ Athens, Dept Phys, Athens, Greece

[13] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[14] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[15] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[16] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[17] Univ Belgrade, Inst Phys, Belgrade, Serbia

[18] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[19] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[20] Univ Calif Berkeley, Berkeley, CA 94720 USA

[21] Humboldt Univ, Dept Phys, Berlin, Germany

[22] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[23] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[24] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[25] Bogazici Univ, Dept Phys, Istanbul, Turkey

[26] Dogus Univ, Dept Phys, Istanbul, Turkey

[27] Gaziantep Univ, Dept Phys Engn, Gaziantep, Turkey

[28] INFN Sez Bologna, Bologna, Italy

[29] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[30] Univ Bonn, Inst Phys, Bonn, Germany

[31] Boston Univ, Dept Phys, Boston, MA 02215 USA

[32] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[33] Univ Fed Rio De Janeiro COPPE EE IF, Rio De Janeiro, Brazil

[34] Fed Univ Juiz de Fora UFJF, Elect Circuits Dept, Juiz De Fora, Brazil

[35] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[36] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[37] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[38] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest 077125, Romania

[39] Natl Inst Res & Dev Isotop & Mol Technol, Cluj Napoca, Romania

[40] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[41] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[42] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[43] CERN, Geneva, Switzerland

[44] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[45] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[46] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[47] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[48] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

[49] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

[50] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 07期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;

关键词：

SQUARK;

D O I：

10.1103/PhysRevD.92.072004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. This article presents the results of a search for events containing at least one long-lived particle that decays at a significant distance from its production point into two leptons or into five or more charged particles. This analysis uses a data sample of proton-proton collisions at root s = 8 TeV corresponding to an integrated luminosity of 20.3 fb(-1) collected in 2012 by the ATLAS detector operating at the Large Hadron Collider. No events are observed in any of the signal regions, and limits are set on model parameters within supersymmetric scenarios involving R-parity violation, split supersymmetry, and gauge mediation. In some of the search channels, the trigger and search strategy are based only on the decay products of individual long-lived particles, irrespective of the rest of the event. In these cases, the provided limits can easily be reinterpreted in different scenarios.

引用

页数：37

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Ai, X.
Aielli, G.
Akatsuka, S.
Akesson, T. P. A.
Akilli, E.
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Alberghi, G. L.
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Alderweireldt, S.
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Adachi, S.
Adamczyk, L.
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Affolder, A. A.
Afik, Y.
Agheorghiesei, C.
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Akesson, T. P. A.
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Alberghi, G. L.
Albert, J.
Albicocco, P.
Alconada Verzini, M. J.
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Aleksandrov, I. N.
Alexa, C.
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Ali, B.
Alimonti, G.
Alison, J.
Alkire, S. P.
Allaire, C.
Allbrooke, B. M. M.
Allen, B. W.
Allport, P. P.
Aloisio, A.
Alonso, A.
Alonso, F.
EUROPEAN PHYSICAL JOURNAL C, 2019, 79 (06):
[10] Search for heavy long-lived multi-charged particles in pp collisions at √s=8 TeV using the ATLAS detector
Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Aben, R.
Abolins, M.
AbouZeid, O. S.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B. S.
Adamczyk, L.
Adams, D. L.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A. A.
Agatonovic-Jovin, T.
Aguilar-Saavedra, J. A.
Ahlen, S. P.
Ahmadov, F.
Aielli, G.
Akerstedt, H.
Akesson, T. P. A.
Akimoto, G.
Akimov, A. V.
Alberghi, G. L.
Albert, J.
Albrand, S.
Alconada Verzini, M. J.
Aleksa, M.
Aleksandrov, I. N.
Alexa, C.
Alexander, G.
Alexopoulos, T.
Alhroob, M.
Alimonti, G.
Alio, L.
Alison, J.
Alkire, S. P.
Allbrooke, B. M. M.
Allport, P. P.
Aloisio, A.
Alonso, A.
Alonso, F.
Alpigiani, C.
Altheimer, A.
Gonzalez, B. Alvarez
Alvarez Piqueras, D.
EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (08):

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